CVE-2019-3829

Exp

A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7. A memory corruption (double free) vulnerability in the certificate verification API. Any client or server application that verifies X.509 certificates with GnuTLS 3.5.8 or later is affected.

Published: 2019-03-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-3829 is rated High Exploit Risk (75.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 58.97%, 99th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +56.85% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-3829

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-3829

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.12% 58.97% +56.85%
2 2025-11-21 9.66% 2.12% -7.54%
3 2025-11-18 — 9.66% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-3829

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 1.4 [email protected]
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2019-3829

OS Trackers for CVE-2019-3829

vendor priority summary link
alpine high CVE-2019-3829: 1 source package rows (gnutls); 15 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 5. https://security.alpinelinux.org/vuln/CVE-2019-3829
debian not yet assigned CVE-2019-3829 not yet assigned priority: Debian including 1 source packages (gnutls28), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-3829
gentoo normal CVE-2019-3829: 1 GLSA(s) (201904-14), 1 atom(s) (net-libs/gnutls); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-3829
redhat medium — https://access.redhat.com/security/cve/CVE-2019-3829
suse medium CVE-2019-3829 severity moderate: SUSE including 380 source package names (0.1.0:libgnutls30-3.6.7-6.8.1, 0.1.75:libgnutls30-3.6.7-6.8.1, …), 450 product×package rows across 85 product lines (Container caasp/v4/389-ds, Container caasp/v4/busybox, … (85 product lines)): Fixed 233, Known Affected 157, Known Not Affected 60. https://www.suse.com/security/cve/CVE-2019-3829/
ubuntu medium CVE-2019-3829 medium priority: Ubuntu including 2 source packages (gnutls26, gnutls28), 12 status rows across 6 suites (bionic, cosmic, disco, trusty, upstream, xenial): DNE 5, released 4, not-affected 2, needs-triage 1. https://ubuntu.com/security/CVE-2019-3829

Affected software / configurations for CVE-2019-3829

Vendor Product Version Raw CPE
gnu gnutls >= 3.5.8, < 3.6.7 cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*
fedoraproject fedora — cpe:2.3:o:fedoraproject:fedora:-:*:*:*:*:*:*:*

References for CVE-2019-3829

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html
https://access.redhat.com/errata/RHSA-2019:3600
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3829 Issue Tracking Third Party Advisory
https://gitlab.com/gnutls/gnutls/issues/694 Exploit Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3ETBUFBB4G7AITAOUYPGXVMBGVXKUAN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7TJIBRJWGWSH6XIO2MXIQ3W6ES4R6I4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WRSOL66LHP4SD3Y2ECJDOGT4K663ECDU/
https://security.gentoo.org/glsa/201904-14
https://security.netapp.com/advisory/ntap-20190619-0004/
https://usn.ubuntu.com/3999-1/
https://www.gnutls.org/security-new.html#GNUTLS-SA-2019-03-27 Exploit Patch Vendor Advisory
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